navicat不能创建函数解决方法分享

第一次写MySQL FUNCTION，一直报错，

Err] 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '`company_id` int) RETURNS varchar(20) CHARSET utf8

BEGIN

本来的函数：

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CREATE DEFINER=`33323`@`%` FUNCTION `createSaleCode`(`benginStr` varchar ,`company_id` int ) RETURNS varchar (20) CHARSET utf8 BEGIN    DECLARE nearnum VARCHAR (20);    DECLARE nowdatepre VARCHAR (20);   DECLARE numout VARCHAR (20);    SELECT a.sale_code INTO nearnum FROM d_sale a WHERE a.company_id = company_id ORDER BY a.sale_id DESC limit 1;   SELECT concat(extract(year_month from now()),LPAD(extract( day from now()), 2, 0)) INTO nowdatepre;   IF locate(nowdatepre,nearnum)>0     THEN      set numout = nearnum +1;      ELSE      set numout = concat(beginStr,nowdatepre, '00001' );     END IF;   RETURN numout; END

这段函数在Navicat上边执行不起来，在多次尝试之后将代码修改为以下：

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delimiter $$ CREATE DEFINER=`12212`@`%` FUNCTION createSaleCode(benginStr varchar (20),company_id int (11) ) RETURNS varchar (20) CHARSET utf8 BEGIN    DECLARE nearnum VARCHAR (20);    DECLARE nowdatepre VARCHAR (20);   DECLARE numout VARCHAR (20);    SELECT a.sale_code INTO nearnum FROM d_sale a WHERE a.company_id = company_id ORDER BY a.sale_id DESC limit 1;   SELECT concat(extract(year_month from now()),LPAD(extract( day from now()), 2, 0)) INTO nowdatepre;   IF locate(nowdatepre,nearnum)>0     THEN      set numout = nearnum +1;      ELSE      set numout = concat(beginStr,nowdatepre, '00001' );     END IF;   RETURN numout; END $$ delimiter ;

问题解决。

默认情况下，delimiter是分号;。

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原文链接：http://blog.csdn.net/wojiaohuangyu/article/details/54629414